In unsupervised data mining, explanations are created after patterns are found.

More Questions from Database Processing for BIS

• In a common form of RFM analysis, customers are sorted in five groups and given a score of 1 to 5 depending on their group.
• OnLine Analytical Processing (OLAP) is a BI reporting system.
• Business Intelligence (BI) systems do not obtain data from operational databases.
• A data warehouse is a database system that is optimized for operational transaction processing.
• A data mart is a collection of data that, while smaller than a data warehouse, still addresses the entire business.
• The term neural networks as used in data mining is a misnomer.
• Most operational databases can be used for many BI applications.
• Data Mining uses simple arithmetic techniques such as sums, averages, and groupings to perform what-if analyses, to make predictions, and to facilitate decision making.
• Data warehouse data are usually normalized.
• The delivery function of a report management system allows reports to be delivered via e-mail, via the Web, via XML Web services, via hand delivery and other delivery means.

Discussion & Comments